Simon Elsbrock elsbrock

Sending email with serverless functions

You can deploy this function on any of the serverless platforms - AWS Lambda, Google Cloud Functions, Azure Functions, Netlify, Cloudflare Workers, etc.

Create a new function and paste in the following code.
You will need to add nodemailer to your package.json (npm i nodemailer), and follow your platform's instructions on bundling dependencies.
Obtain Gmail API credentials for your account. You will need clientID, clientSecret, and refreshToken. Follow this YouTube tutorial
Expose these credentials as the follwing environment variables:

GMAIL_EMAIL_ADDRESS

Proxmox VE 6.x release includes a feature to add custom cloud-init configs. Unfortunately there is poor documentation, so I had to figure this out by adding pieces of information together.

The custom cloud-init files (user-data, meta-data, network-config)

The cloud-init files need to be stored in a snippet. This is not very well documented:

Go to Storage View -> Storage -> Add -> Directory
Give it an ID such as snippets, and specify any path on your host such as /snippets
Under Content choose Snippets and de-select Disk image (optional)
Upload (scp/rsync/whatever) your user-data, meta-data, network-config files to your proxmox server in /snippets/snippets/ (the directory should be there if you followed steps 1-3)

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}

Install Proxmox and a RancherOS VM with Portainer to manage docker containers

WARNING MAY BE INCORRECT AND INCOMPLETE, USE AT YOUR OWN RISK

I have tried this setup and although it works and may be good for ceratin circumstances I would advise using ubuntu as the base with docker, docker-compose, and portainer. https://gist.github.com/mow4cash/626275e095f7f90898944a85d66b3be6

Link to my docker run file https://gist.github.com/mow4cash/6a25343cdeb0cd115f263dea0a3b623d

Nix builder for Kubernetes

Table of Contents

Nix builder for Kubernetes
- Overview
- Why?
How?

	# /etc/sysctl.d/wireguard.conf
	net.ipv4.ip_forward=1
	net.ipv6.conf.all.forwarding=1
	net.ipv6.conf.default.forwarding=1
	net.ipv6.conf.eth0.proxy_ndp=1

	#/etc/wireguard/wg0.conf (DO virtual machine)
	[Interface]
	# The server interface does not actually need an ipv6.
	# The 2 following must be repeated for each used addres [0, 1]

	Mute these words in your settings here: https://twitter.com/settings/muted_keywords

	ActivityTweet
	generic_activity_highlights
	generic_activity_momentsbreaking
	RankedOrganicTweet
	suggest_activity
	suggest_activity_feed
	suggest_activity_highlights
	suggest_activity_tweet

	#!/usr/bin/env python3
	# Build a SQLite3 DB for looking up SHA-1 hashes of leaked passwords.
	#
	# This can be fed the txt file from one of Have I Been Pwned's hash
	# lists available from https://haveibeenpwned.com/Passwords -- but any
	# text file with line format ``hash-hex:count`` will work.
	#
	# When run on the v5 hash-ordered SHA-1 file, expect the build to take
	# about 35 minutes and produce a 15.7 GiB file (~30.5 bytes per record).
	#

	#!/usr/bin/env bash
	# Runs a command wrapped in ZFS pre-post snapshots. The whole data pool is recursively snapshotted.
	# Analogous to my snp script for BTRFS: https://gist.github.com/erikw/5229436
	# Usage: $ znp <commands>
	# e.g.: $ znp pgk upgrade
	# e.g.: $ znp portmaster -aG
	# e.g.: $ znp freebsd-upgrade install

	zfs_pool=zroot

	default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
	default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
	default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'